More than 100 firefighters were deployed to a fire at an apartment block in London on July 20, the London Fire Brigade said.

Footage by Assan Jallow shows smoke pouring from the building and a patch of grass in Woolwich in the southeast of the city.

According to the fire department, an apartment on the 17th floor was “completely alight.”

“Firefighters are also tackling a fire involving around one hectare of grass opposite the block at the junction between Manwood Street and Silverland Street,” the fire department said.

The cause of the fire was not known as of Wednesday afternoon. Credit: Assan Jallow via Storyful